fix coloring of last n_batch of prompt, and refactor line input

[bitRAKE]

llama.cpp/main.cpp

Lines 980 to 983 in 7213110

	// reset color to default if we there is no pending user input
	if (!input_noecho && params.use_color && embd_inp.size() == input_consumed) {
	printf(ANSI_COLOR_RESET);
	}

This can fail to colorize the last params.n_batch part of the prompt correctly because embd was just loaded with those tokens and not printed, yet.

[sw]

Can confirm the bug and the PR fixes it and is certainly cleaner. Can you resolve the conflicts and maybe take along the one-liner in #283, also related to colors? Thanks.

[ggerganov]

@sw merge if you approve it